A sampling device for liquid polyaluminum chloride

Abstract

The utility model discloses a kind of sampling devices for liquid polyaluminium chloride, including syringe shell and sampling cylinder, two clamping structures are symmetrically equipped on the syringe shell, the top end outside of the sampling cylinder is fixedly connected with clamping disc, the inner top of the sampling cylinder is fixedly connected with rubber plug, the outer wall of the sampling cylinder is fixedly connected with scale, the bottom of the sampling cylinder is equipped with anti-dripping structure, the clamping structure includes fixed frame that is fixedly connected on the outer wall of syringe shell. The utility model, by setting fixed frame, support rod, flap, clamping plate and reset spring etc., with thumb and index finger press one end of two flaps, flap rotates on corresponding support rod, and corresponding reset spring is compressed, make the other end of flap drive clamping plate to lift, make clamping plate separate from clamping disc, then sampling cylinder is pulled out downwards, can be directly used as sample storage container and sent to laboratory, to avoid pollution caused by secondary transfer.

Description

Technical Field

[0001] This utility model relates to the field of liquid polyaluminum chloride sampling technology, and in particular to a sampling device for liquid polyaluminum chloride. Background Technology

[0002] Liquid polyaluminum chloride is an inorganic polymeric flocculant with strong adsorption properties, suitable for water purification, wastewater treatment and other fields. It is usually a colorless and transparent liquid with good heat resistance, and can still maintain coagulation under high temperature conditions. After the production of liquid polyaluminum chloride, it is necessary to sample and test it.

[0003] However, in the existing technology, liquid polyaluminum chloride is usually first drawn up with a syringe and then injected into the sampling tube. This operation process is prone to secondary pollution. Therefore, a sampling device for liquid polyaluminum chloride is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a sampling device for liquid polyaluminum chloride.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a sampling device for liquid polyaluminum chloride, comprising a syringe shell and a sampling tube, wherein two snap-fit ​​structures are symmetrically provided on the syringe shell, a snap-fit ​​plate is fixedly connected to the top of the sampling tube, a rubber stopper is fixedly connected to the top of the sampling tube, a scale is fixedly connected to the outer wall of the sampling tube, and an anti-drip structure is provided at the bottom of the sampling tube. The snap-fit ​​structure includes a fixed frame fixedly connected to the outer wall of the syringe housing. A support rod is fixedly connected inside the fixed frame. A rocker arm is rotatably connected to the support rod. A snap-fit ​​plate is fixedly connected to one side of the rocker arm. The upper surface of the snap-fit ​​plate is in contact with the bottom of the snap-fit ​​disc. When one end of the two rocker arms is pressed with the thumb and forefinger, the rocker arm rotates on the corresponding support rod, causing the other end of the rocker arm to lift the snap-fit ​​plate, thus detaching the snap-fit ​​plate from the snap-fit ​​disc.

[0006] As a further description of the above technical solution: A return spring is fixedly connected to one side of the fixed frame. The other end of the return spring is fixedly connected to one side of the rocker. By the elastic return of the return spring, one end of the rocker is pushed, so that the other end of the rocker drives the snap-fit ​​plate to snap into the bottom of the snap-fit ​​plate, thereby fixing the sampling cylinder.

[0007] As a further description of the above technical solution: The anti-drip structure includes a sampling tube fixedly connected to the bottom of the sampling cylinder, and a valve shell fixedly connected to the sampling tube. The valve shell is in communication with the sampling tube, and liquid polyaluminum chloride enters the sampling cylinder through the sampling tube and the valve shell.

[0008] As a further description of the above technical solution: A damping shaft is rotatably connected through one side of the valve body. A rotating knob is fixedly connected to one end of the damping shaft. Rotating the rotating knob causes the damping shaft to rotate 90 degrees.

[0009] As a further description of the above technical solution: The other end of the damping shaft is fixedly connected to a ball valve, which is rotatably connected inside the valve body. The damping shaft drives the ball valve to rotate, causing the ball valve to close and block the passage of the valve body.

[0010] As a further description of the above technical solution: Two fixing plates are symmetrically fixed to the outer wall of the syringe housing. A needle is fixedly connected to the bottom of the syringe housing. The needle is inserted into the upper surface of the rubber stopper and extends into the sampling tube to extract air from inside the sampling tube.

[0011] As a further description of the above technical solution: A piston disc is slidably connected inside the syringe housing. A piston rod is fixedly connected to the upper surface of the piston disc. A push-pull disc is fixedly connected to the top of the piston rod. Pulling the push-pull disc moves the piston rod, which in turn moves the piston disc upward, creating a negative pressure inside the sampling cylinder.

[0012] This utility model has the following beneficial effects: 1. Compared with existing technologies, this sampling device for liquid polyaluminum chloride, by setting up a fixed frame, support rod, rocker, snap-fit ​​plate and return spring, etc., press one end of the two rocker with the thumb and forefinger, the rocker rotates on the corresponding support rod and compresses the corresponding return spring, so that the other end of the rocker drives the snap-fit ​​plate to tilt up, so that the snap-fit ​​plate is separated from the snap-fit ​​plate, and then the sampling tube is pulled down and can be directly used as a sample storage container to be sent to the laboratory, thereby avoiding contamination caused by secondary transfer.

[0013] 2. Compared with the prior art, the sampling device for liquid polyaluminum chloride is equipped with a sampling tube, valve body, damping shaft, ball valve and rotary knob. Rotating the knob drives the damping shaft to rotate 90 degrees, and the damping shaft drives the ball valve to rotate, so that the ball valve closes and blocks the passage of the valve body, thus preventing the liquid polyaluminum chloride inside the sampling tube from leaking out. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a sampling device for liquid polyaluminum chloride proposed in this utility model; Figure 2 This is a cross-sectional view of a sampling device for liquid polyaluminum chloride proposed in this utility model; Figure 3 This is a schematic diagram of the sampling cylinder of a sampling device for liquid polyaluminum chloride proposed in this utility model; Figure 4 Exploded view of the anti-drip structure of a sampling device for liquid polyaluminum chloride proposed in this utility model; Figure 5 This is a schematic diagram of the snap-fit ​​structure of a sampling device for liquid polyaluminum chloride proposed in this utility model; Figure 6 This is an exploded view of the snap-fit ​​structure of a sampling device for liquid polyaluminum chloride proposed in this utility model.

[0015] Legend: 1. Syringe housing; 2. Sampling tube; 3. Snap-fit ​​plate; 4. Scale; 5. Anti-drip structure; 501. Sampling tube; 502. Valve housing; 503. Damping shaft; 504. Ball valve; 505. Rotary knob; 6. Rubber stopper; 7. Snap-fit ​​structure; 701. Fixing frame; 702. Support rod; 703. Rocker; 704. Snap-fit ​​plate; 705. Return spring; 8. Fixing plate; 9. Needle; 10. Piston disc; 11. Piston rod; 12. Push-pull disc. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figures 1 to 6This utility model provides a sampling device for liquid polyaluminum chloride: it includes a syringe housing 1 and a sampling cylinder 2. Two snap-fit ​​structures 7 are symmetrically arranged on the syringe housing 1. A snap-fit ​​plate 3 is fixedly connected to the top of the sampling cylinder 2. A rubber stopper 6 is fixedly connected to the inner top of the sampling cylinder 2. When the needle 9 is disengaged from the rubber stopper 6, the opening is sealed again by the properties of the rubber stopper 6. A scale 4 is fixedly connected to the outer wall of the sampling cylinder 2, allowing the operator to observe and control the sample volume. An anti-drip structure 5 is provided at the bottom of the sampling cylinder 2. The outer wall of the syringe housing 1 is symmetrically fixedly connected with… Two fixed plates 8 are fixedly connected to the bottom of the syringe housing 1. The needle 9 is inserted into the upper surface of the rubber stopper 6 and extends into the sampling cylinder 2. The piston plate 10 is slidably connected inside the syringe housing 1. The piston rod 11 is fixedly connected to the upper surface of the piston plate 10. The top of the piston rod 11 is fixedly connected to the push-pull plate 12. Pulling the push-pull plate 12 causes the piston rod 11 to move. The piston rod 11 causes the piston plate 10 to move upward, drawing out the air inside the sampling cylinder 2. Under negative pressure, liquid polyaluminum chloride enters the sampling cylinder 2 through the sampling tube 501 and the valve shell 502. To achieve rapid assembly and disassembly, the snap-fit ​​structure 7 includes a fixed frame 701 fixedly connected to the outer wall of the syringe housing 1. A support rod 702 is fixedly connected inside the fixed frame 701. A rocker arm 703 is rotatably connected to the support rod 702. A snap-fit ​​plate 704 is fixedly connected to one side of the rocker arm 703. The upper surface of the snap-fit ​​plate 704 is in contact with the bottom of the snap-fit ​​plate 3. A return spring 705 is fixedly connected to one side of the fixed frame 701. The other end of the return spring 705 is fixedly connected to one side of the rocker arm 703. By pressing one end of the two rocker arms 703 with the thumb and forefinger, the rocker arm 703 rotates on the corresponding support rod 702 and compresses the corresponding return spring 705, causing the other end of the rocker arm 703 to lift the snap-fit ​​plate 704, causing the snap-fit ​​plate 704 to detach from the snap-fit ​​plate 3. Then, the sampling cylinder 2 can be pulled out downwards and can be directly used as a sample storage container to be sent to the laboratory, avoiding contamination caused by secondary transfer. To prevent leakage, the anti-drip structure 5 includes a sampling tube 501 fixedly connected to the bottom of the sampling cylinder 2. A valve shell 502 is fixedly connected to the sampling tube 501, and the valve shell 502 communicates with the sampling tube 501. A damping shaft 503 is rotatably connected through one side of the valve shell 502. A rotating knob 505 is fixedly connected to one end of the damping shaft 503, and a ball valve 504 is fixedly connected to the other end of the damping shaft 503. The ball valve 504 is rotatably connected inside the valve shell 502. Rotating the rotating knob 505 causes the damping shaft 503 to rotate 90 degrees, which in turn causes the ball valve 504 to rotate, closing the ball valve 504 and blocking the passage of the valve shell 502, thus preventing the leakage of liquid polyaluminum chloride inside the sampling cylinder 2.

[0018] Working principle: Insert the sampling tube 501 into the liquid polyaluminum chloride, then pull the push-pull plate 12. The push-pull plate 12 drives the piston rod 11 to move, and the piston rod 11 drives the piston plate 10 to move upward, drawing out the air inside the sampling cylinder 2. Under negative pressure, the liquid polyaluminum chloride enters the sampling cylinder 2 through the sampling tube 501 and valve body 502. The operator can observe and control the amount of sample drawn through the scale 4. After the drawing is completed, turn the rotary knob 505. Turning the knob 505 drives the damping shaft 503 to rotate 90 degrees. The damping shaft 503 carries... Rotating the ball valve 504 closes the valve and blocks the passage of the valve body 502, preventing leakage of liquid polyaluminum chloride inside the sampling cylinder 2. Then, press one end of the two rocker plates 703 with your thumb and forefinger. The rocker plates 703 rotate on the corresponding support rods 702 and compress the corresponding return springs 705, causing the other end of the rocker plates 703 to lift the locking plate 704, disengaging the locking plate 704 from the locking disc 3. Then, pull the sampling cylinder 2 out downwards. It can be directly used as a sample storage container and sent to the laboratory, thus avoiding contamination caused by secondary transfer.

[0019] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sampling device for liquid polyaluminum chloride, comprising a syringe housing (1) and a sampling cylinder (2), characterized in that: The syringe housing (1) is symmetrically provided with two snap-fit ​​structures (7), the top of the sampling tube (2) is fixedly connected with a snap-fit ​​plate (3), the top of the sampling tube (2) is fixedly connected with a rubber stopper (6), the outer wall of the sampling tube (2) is fixedly connected with a scale (4), and the bottom of the sampling tube (2) is provided with an anti-drip structure (5). The snap-fit ​​structure (7) includes a fixed frame (701) fixedly connected to the outer wall of the syringe housing (1). A support rod (702) is fixedly connected inside the fixed frame (701). A rocker (703) is rotatably connected to the support rod (702). A snap-fit ​​plate (704) is fixedly connected to one side of the rocker (703). The upper surface of the snap-fit ​​plate (704) is in contact with the bottom of the snap-fit ​​plate (3).

2. The sampling device for liquid polyaluminum chloride according to claim 1, characterized in that: A reset spring (705) is fixedly connected to one side of the inside of the fixed frame (701), and the other end of the reset spring (705) is fixedly connected to one side of the rocker (703).

3. The sampling device for liquid polyaluminum chloride according to claim 1, characterized in that: The anti-drip structure (5) includes a sampling tube (501) fixedly connected to the bottom of the sampling tube (2), and a valve shell (502) fixedly connected to the sampling tube (501), and the valve shell (502) is in communication with the sampling tube (501).

4. The sampling device for liquid polyaluminum chloride according to claim 3, characterized in that: A damping shaft (503) is rotatably connected through one side of the valve housing (502), and a rotating knob (505) is fixedly connected to one end of the damping shaft (503).

5. A sampling device for liquid polyaluminum chloride according to claim 4, characterized in that: The other end of the damping shaft (503) is fixedly connected to a ball valve (504), which is rotatably connected inside the valve body (502).

6. A sampling device for liquid polyaluminum chloride according to claim 1, characterized in that: Two fixing plates (8) are symmetrically fixed to the outer wall of the syringe housing (1). A needle (9) is fixedly connected to the bottom of the syringe housing (1). The needle (9) is inserted into the upper surface of the rubber stopper (6) and extends into the interior of the sampling cylinder (2).

7. A sampling device for liquid polyaluminum chloride according to claim 1, characterized in that: A piston disc (10) is slidably connected inside the syringe housing (1), a piston rod (11) is fixedly connected to the upper surface of the piston disc (10), and a push-pull disc (12) is fixedly connected to the top end of the piston rod (11).

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